Initiation, Growth, and Coalescence of Small Fatigue Cracks.

Abstract

This interim report summarizes the first year's progress on a research effort directed at studying the initiation, growth, and coalescence of small fatigue cracks at notches. A fracture mechanics based model is described to predict the growth and coalescence of multiple cracks located at notches. Stress intensity factors are presented for interacting cracks located at holes. The predictive model is compared with experimental results obtained with multiply cracked specimens made from a transparent polymer. Current efforts and future goals are also briefly described. (Author)

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1983
Accession Number
ADA133935

Entities

People

  • A. F. Grandt Jr.

Organizations

  • Purdue University

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aeronautics
  • Air Force
  • Algorithms
  • Astronautics
  • Cameras
  • Computer Programs
  • Computers
  • Crack Tips
  • Diameters
  • Fatigue Tests (Mechanics)
  • Fracture (Mechanics)
  • Geometry
  • Measurement
  • Mechanics
  • Stresses
  • Three Dimensional
  • Two Dimensional

Readers

  • Materials Science (Mechanical Engineering).
  • Technical Research and Report Writing.